package com.xkdx.guangguang.zxing;

import java.io.IOException;
import java.util.HashMap;
import java.util.Vector;

import org.json.JSONException;
import org.json.JSONObject;

import android.app.Activity;
import android.app.AlertDialog;
import android.app.Dialog;
import android.content.DialogInterface;
import android.content.res.AssetFileDescriptor;
import android.graphics.Bitmap;
import android.media.AudioManager;
import android.media.MediaPlayer;
import android.media.MediaPlayer.OnCompletionListener;
import android.os.Bundle;
import android.os.Handler;
import android.os.Vibrator;
import android.view.SurfaceHolder;
import android.view.SurfaceHolder.Callback;
import android.view.SurfaceView;
import android.widget.Toast;

import com.google.zxing.BarcodeFormat;
import com.google.zxing.Result;
import com.xkdx.Zxing.camera.CameraManager;
import com.xkdx.caipiao.R;
import com.xkdx.guangguang.module.network.AbsModule;
import com.xkdx.guangguang.module.statics.IConstants;
import com.xkdx.guangguang.module.util.ErrorModule;
import com.xkdx.guangguang.presistence.getgoods.GetGoodsAction;
import com.xkdx.guangguang.presistence.getgoods.GetGoodsModule;
import com.xkdx.guangguang.presistence.getgoods.GetGoodsPresistence;
import com.xkdx.guangguang.util.SharePrefenceUtil;

public class CaptureActivity extends Activity implements Callback {

	private CaptureActivityHandler handler;
	private ViewfinderView viewfinderView;
	private boolean hasSurface;
	private Vector<BarcodeFormat> decodeFormats;
	private String characterSet;
	private InactivityTimer inactivityTimer;
	private MediaPlayer mediaPlayer;
	private boolean playBeep;
	private static final float BEEP_VOLUME = 0.10f;
	private boolean vibrate;

	GetGoodsAction action;
	GetGoodsModule module;
	GetGoodsPresistence presistence;

	String userID, loginToken, type;

	/** Called when the activity is first created. */
	@Override
	public void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.scanner);
		// ��ʼ�� CameraManager
		CameraManager.init(getApplication(),
				(int) (IConstants.DisplayWidth * 3 / 4));
		viewfinderView = (ViewfinderView) findViewById(R.id.viewfinder_view);
		hasSurface = false;
		inactivityTimer = new InactivityTimer(this);
		type = getIntent().getStringExtra("type");
		SharePrefenceUtil user = new SharePrefenceUtil(this, IConstants.SP_USER);
		userID = user.getUserID();
		loginToken = user.getUserLoginToken();
	}

	@Override
	protected void onResume() {
		super.onResume();
		SurfaceView surfaceView = (SurfaceView) findViewById(R.id.preview_view);
		SurfaceHolder surfaceHolder = surfaceView.getHolder();
		if (hasSurface) {
			initCamera(surfaceHolder);
		} else {
			surfaceHolder.addCallback(this);
			surfaceHolder.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS);
		}
		decodeFormats = null;
		characterSet = null;

		playBeep = true;
		AudioManager audioService = (AudioManager) getSystemService(AUDIO_SERVICE);
		if (audioService.getRingerMode() != AudioManager.RINGER_MODE_NORMAL) {
			playBeep = false;
		}
		initBeepSound();
		vibrate = true;
	}

	@Override
	protected void onPause() {
		super.onPause();
		if (handler != null) {
			handler.quitSynchronously();
			handler = null;
		}
		CameraManager.get().closeDriver();
	}

	@Override
	protected void onDestroy() {
		inactivityTimer.shutdown();
		super.onDestroy();
	}

	private void initCamera(SurfaceHolder surfaceHolder) {
		try {
			CameraManager.get().openDriver(surfaceHolder);
		} catch (IOException ioe) {
			return;
		} catch (RuntimeException e) {
			return;
		}
		if (handler == null) {
			handler = new CaptureActivityHandler(this, decodeFormats,
					characterSet);
		}
	}

	@Override
	public void surfaceChanged(SurfaceHolder holder, int format, int width,
			int height) {

	}

	@Override
	public void surfaceCreated(SurfaceHolder holder) {
		if (!hasSurface) {
			hasSurface = true;
			initCamera(holder);
		}

	}

	@Override
	public void surfaceDestroyed(SurfaceHolder holder) {
		hasSurface = false;

	}

	public ViewfinderView getViewfinderView() {
		return viewfinderView;
	}

	public Handler getHandler() {
		return handler;
	}

	public void drawViewfinder() {
		viewfinderView.drawViewfinder();

	}

	public void handleDecode(final Result obj, Bitmap barcode) {
		inactivityTimer.onActivity();
		String orStr = obj.getText();
		String code = null, type = null;
		try {
			JSONObject js = new JSONObject(orStr);
			type = js.getString("Type");
			code = js.getString("Exchange_Code");
		} catch (JSONException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}

		action = new GetGoodsAction(userID, loginToken, type, code);
		module = new GetGoodsModule();
		presistence = new GetGoodsPresistence(this);
		presistence.setActitons(action);
		presistence.setModule(module);
		presistence.execute();
		Toast.makeText(this, "正在领取。。", Toast.LENGTH_SHORT).show();
	}

	private void initBeepSound() {
		if (playBeep && mediaPlayer == null) {
			// The volume on STREAM_SYSTEM is not adjustable, and users found it
			// too loud,
			// so we now play on the music stream.
			setVolumeControlStream(AudioManager.STREAM_MUSIC);
			mediaPlayer = new MediaPlayer();
			mediaPlayer.setAudioStreamType(AudioManager.STREAM_MUSIC);
			mediaPlayer.setOnCompletionListener(beepListener);

			AssetFileDescriptor file = getResources().openRawResourceFd(
					R.raw.beep);
			try {
				mediaPlayer.setDataSource(file.getFileDescriptor(),
						file.getStartOffset(), file.getLength());
				file.close();
				mediaPlayer.setVolume(BEEP_VOLUME, BEEP_VOLUME);
				mediaPlayer.prepare();
			} catch (IOException e) {
				mediaPlayer = null;
			}
		}
	}

	private static final long VIBRATE_DURATION = 200L;

	private void playBeepSoundAndVibrate() {
		if (playBeep && mediaPlayer != null) {
			mediaPlayer.start();
		}
		if (vibrate) {
			Vibrator vibrator = (Vibrator) getSystemService(VIBRATOR_SERVICE);
			vibrator.vibrate(VIBRATE_DURATION);
		}
	}

	/**
	 * When the beep has finished playing, rewind to queue up another one.
	 */
	private final OnCompletionListener beepListener = new OnCompletionListener() {
		public void onCompletion(MediaPlayer mediaPlayer) {
			mediaPlayer.seekTo(0);
		}
	};

	public void showLoaded(HashMap<String, AbsModule> map) {
		if (map.containsKey("0")) {
			Dialog dialog = new AlertDialog.Builder(this)
					.setMessage(module.message)
					.setNegativeButton("确定",
							new DialogInterface.OnClickListener() {
								@Override
								public void onClick(DialogInterface dialog,
										int which) {
									finish();
								}
							}).create();
			dialog.show();
		} else {
			Dialog dialog = new AlertDialog.Builder(this)
					.setMessage(((ErrorModule) map.get("1")).errorMessage)
					.setNegativeButton("确定",
							new DialogInterface.OnClickListener() {
								@Override
								public void onClick(DialogInterface dialog,
										int which) {
									finish();
								}
							}).create();
			dialog.show();
		}

	}

}